What is the HLB of xanthan gum?
The HLB value of Tween 85, Tween 80, and Tween 20 are 11.0, 15.0, and 16.7, respectively.
What is the HLB of propylene glycol?
The HLB value calculated for the mixture of tween20/ propylene glycol was in a range between 10.1 and 13.4.
What is the HLB value for detergency?
The HLB of the nonionic surfactant is set to be between 13 and 16 which is the standard HLB range for detergent products (Griffin, 1949) and to ensure that the product exhibits high detergency and forms a clear solution (Fung et al., 2007).
What is the HLB value of lipophilic surfactant?
Hydrophilic–lipophilic balance (HLB) is the balance of the size and strength of the hydrophilic and lipophilic moieties of a surfactant molecule. The HLB scale ranges from 0 to 20. In the range of 3.5 to 6.0, surfactants are more suitable for use in W/O emulsions.
Is guar gum acidic or alkaline?
Guar gum
| Identifiers | |
|---|---|
| CompTox Dashboard ( EPA ) | DTXSID3020675 |
| Properties | |
| Density | 0.8-1.0 g/mL at 25 °C |
| Acidity (pKa) | 5-7 |
What is the HLB value for water in oil emulsion?
The results indicated that optimal HLB number for O/W emulsions was 10.8 and 10.7, while using MS-01 surfactant and MS-02 surfactant respectively.
What is the HLB of glycerol?
For glycerol monostearate (1 stearyl for 1 glycerol), the HLB would be 4.2, given that the saponification index is 154.4 and the acid index is 197.1. Thus, this molecule is hydrophobic, and can be used to stabilize an emulsion of water in oil.
How do you calculate HLB?
HLB= E / 5 can be calculated with this equation. E: Percentage by weight of ethyleneoxide • HLB value of fatty acid esters of polyhydric alcohols such as glyceryl monostearate, HLB= 20 [1-(S / A)] is calculated with that equation. The HLB values of some of the most frequently used surfactants are shown in Table 11.1.
What increases the viscosity of guar gum?
The rate of guar gum dissolution and viscosity development generally increases with decreasing particle size, decreasing pH and increasing temperature. Hydration rates are reduced in the presence of dissolved salts and other water-binding agents such as sucrose (Bemiller and Whistler 1993).
What is the HLB of beeswax?
So the HLB value of the emulsion set number 4 was calculated as follow: liquid paraffin = 10/20×HLB 10 = 5.0, soft paraffin = 7.059/20×HLB 7 = 2.471, beeswax = 2.941/20×HLB 12 = 1.765. So the calculated HLB value was 9.236 [11].
How do you calculate HLB for oil?
What is the difference between Tween 80 and Tween 20?
Tween-80 (polyoxyethylene sorbitan monooleate) is oleate and Tween-20 (polyoxyethylene sorbitan monolaurate) is laurate. Tween 80 has a longer aliphatic tail and therefore more lipophilic. Tween 20 is the more hydrophilic.
What is the pH of guar gum?
about 1.0–10.5
pH. Guar gum solutions are stable over a wide pH range of about 1.0–10.5. This is due to its non-ionic and uncharged behaviour. Final viscosity of guar gum is not affected by the pH, but the hydration rate shows variation with any change in pH.
How do you thicken guar gum?
Guar is The Most Effective Thickening Agent In terms of recipe applications, for every 2 Tablespoons of flour per cup of liquid, about 3/8 teaspoon of guar gum would be required. When heated, guar gum does not break down, which is not the case with corn starch.